Type confusion in PostgreSQL - CVE-2026-2004
Published: February 12, 2026
Vulnerability identifier: #VU122777
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-2004
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PostgreSQL Global Development Group
Affected software:
PostgreSQL
PostgreSQL
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in intarray extension. A remote user can pass specially crafted data to the application, trigger a type confusion error and execute arbitrary code on the target system.
How to mitigate CVE-2026-2004
Install updates from vendor's website.